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Ocular Videography System

a videography system and ocular technology, applied in the field of ocular videography system, can solve the problems of limited weight capacity and inability to perform oculo-videography in freely moving rodents, and achieve the effect of minimizing re-projection error and minimizing re-projection error

Active Publication Date: 2017-10-31
STIFTUNG CAESAR CENT OF ADVANCED EURON STUDIES & RES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a special lens that can capture high-contrast and large depth of field images. This allows for the detection of fine structure along the boundary of the pupil and torsional rotation of the eye. The lens is designed to minimize errors in the re-projection of manually marked points on the eyelid and eyeball. The process involves using multiple frames and a large number of marked points. The technical effect of this invention is improved accuracy and precision in eye imaging for diagnostic and therapeutic purposes.

Problems solved by technology

The problem is how to record accurate eye movements from fully unrestrained animals that have a very limited capacity to carry weight.
Due to their small size relative to available oculo-videography systems, oculo-videography has not been performed in freely moving rodents.

Method used

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Embodiment Construction

[0206]FIG. 1 shows in a schematic, perspective view an example of ocular videography system 100 according to one embodiment of the present invention. In particular the miniature tethered mobile camera system 1 shown in FIG. 1 is small and light enough to be carried by small rodents (mice and rats). Additionally it can be used for oculo-videography (recording eye movements) in a freely moving animal, but could also be used for other applications. Camera development included development of software to operate and record data from the camera.

[0207]In particular the Ocular Videography System 100 for tracking an eye movement of an animal, in particular rats, comprises the camera system 1 suitable of being positioned on a head of an animal to track an eye movement of at least one eye of the animal, and a head mount 2 on which the camera system 1 is fixed or fixable.

[0208]Further the Ocular Videography System 100 comprises at least one image sensor 3 as well as at least one decoder 4, for ...

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Abstract

The present invention relates to an Ocular Videography System for tracking eye movements of an animal, in particular rats, comprising a camera system suitable of being positioned on the head of an animal to track eye movements of at least one eye of the animal, a head mount on which the camera system is fixed or fixable, wherein, at least one image sensor as well as at least one decoder, for decoding a signal detected by the image sensor, each being comprised by the camera system, and wherein the camera system, and in particular a camera of the camera system, is designed in such a way that it detects a movement of the eye and / or a movement of the head of the animal in a vertical and / or horizontal and / or a torsional direction to an optical axis of the camera system and / or of the optical axis of the animal's eye without interfering with the animal's natural motion dynamics.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application claims the benefit of priority from U.S. Provisional Application No. 61 / 826,639, filed on May 23, 2013, and European Patent Application No. 13 168 890.5, filed on May 23, 2013, all of which are incorporated herein by reference in their entirety.SUMMARY OF THE INVENTION[0002]The present invention relates to an ocular videography system and electronics for tracking eye movements of animals, in particular of rodents, for example rats or the like. Further, the invention relates to an overhead position tracking hardware for automatic detection of the position of the animal in addition to the movement of at least one eye of the animal as well as (software) analysis methods concerning an implementation of said automatic detection of the movement of at least one eye of the animal for example in or related with said ocular videography system.[0003]Studying vision in rodents is one of the cornerstones in mammalian brain research a...

Claims

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Application Information

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IPC IPC(8): H04N5/33A61B3/113H04N5/225A61B3/14
CPCA61B3/113A61B3/145H04N5/2256H04N5/33H04N5/2252A61B2503/40H04N23/20H04N23/51H04N23/56
Inventor KERR, JASONWALLACE, DAMIAN HAYDONSAWINSKI, JUERGENGREENBERG, DAVID
Owner STIFTUNG CAESAR CENT OF ADVANCED EURON STUDIES & RES
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